NDLI: Developing a method for increasing the service life of a higher paraffin dehydrogenation catalyst, based on the nonstationary kinetic model of a reactor

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Developing a method for increasing the service life of a higher paraffin dehydrogenation catalyst, based on the nonstationary kinetic model of a reactor

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Catalysis in Industry : Volume 4, Issue 1, March 2012

Catalysis in Industry : Volume 3

Catalysis in Industry : Volume 2

Catalysis in Industry : Volume 1

Developing a method for increasing the service life of a higher paraffin dehydrogenation catalyst, based on the nonstationary kinetic model of a reactor

Content Provider	Springer Nature Link
Author	Ivashkina, E. N. Frantsina, E. V. Romanovsky, R. V. Dolganov, I. M. Ivanchina, E. D. Kravtsov, A. V.
Copyright Year	2012
Abstract	The service life of an industrial catalyst can be prolonged by improving the technological conditions of its operation. This allows us to maximally eliminate the catalyst deactivation factors. A specific feature of the catalytic dehydrogenation of hydrocarbons is its nonstationarity produced by the deactivation of catalysts. The results of modeling the industrial catalytic process of C$_{9}$-C$_{14}$ paraffin dehydrogenation—the key stage in the production of linear alkylbenzenes—is discussed in this paper. We consider (1) thermodynamic analysis of reactions by means of quantum chemistry, (2) estimation of the kinetic model’s parameters by solving the inverse kinetic problem, (3) selection of an equation that describes the coke deactivation of a catalyst, and (4) development of a method for increasing the service life of a dehydrogenation catalyst using a nonstationary model based on the quantitative consideration of the water added to a reactor within a temperature range of 470–490°C. The higher alkane dehydrogenation flowsheet proposed on the basis of these models allows us to predict the operation of a reactor in different water supply regimes. It is shown that the service life of a catalyst grows by 20–30% on the average, if water is fed by increasing portions.
Starting Page	110
Ending Page	120
Page Count	11
File Format	PDF
ISSN	20700504
Journal	Catalysis in Industry
Volume Number	4
Issue Number	2
e-ISSN	20700555
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2012-06-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	catalyst dehydrogenation higher alkanes mathematical modeling resource efficiency quantum chemistry methods inverse kinetic problem deactivation Catalysis
Content Type	Text
Resource Type	Article
Subject	Catalysis

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Developing a method for increasing the service life of a higher paraffin dehydrogenation catalyst, based on the nonstationary kinetic model of a reactor

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